/* 
 * SAVE this line
 * DELETE this line
 * DELETE this line also
 * DELETE this useless line
 * SAVE this important info
 * SAVE this line
 * DELETE this line
 */

int main(void) {

    // do nothing
    // really do nothing
    // successfully done nothing
    return 0;

}

/* 
 * SAVE this line
 * DELETE this line
 * DELETE this line also
 * DELETE this useless line
 * SAVE this important info
 * SAVE this line
 * DELETE this line
 */